@inproceedings{f7c3c830d4564f769dbd97328b7f4bf7,
title = "Contextual Biometric-Based Authentication for Ubiquitous Services",
abstract = "We introduce and comment on the concept of contextual pseudo identity. A contextual pseudo identity is a soft identity token that is built from both a user's biometric and the context. When it comes to ubiquitous authentication, a contextual pseudo identity promises better security than that offered by traditional biometrics-based identity tokens: the use of context improves the tokens' disposability and renewability, which are two essential properties in the protection of a user's real identity. Our algorithm for generating contextual pseudo identities extends a Fuzzy Embedder so that it accepts both biometric and context-dependent input. We prove that our way of processing the context preserves the security and reliability properties of the Fuzzy Embedder used in our extension. An example shows how a user can utilize contextual pseudo identity to authenticate to and access ubiquitous services.",
keywords = "Biometrics, Context-aware authentication, Fuzzy embedder, Ubiquitous services",
author = "Ileana Buhan and Gabriele Lenzini and Sa{\v s}a Radomirovi{\'c}",
note = "No funding info; 7th International Conference on Ubiquitous Intelligence and Computing : {"}Building Smart Worlds in Real and Cyber Spaces{"}, UIC 2010 ; Conference date: 26-10-2010 Through 29-10-2010",
year = "2010",
doi = "10.1007/978-3-642-16355-5_51",
language = "English",
isbn = "9783642163548",
series = "Lecture Notes in Computer Science ",
publisher = "Springer Verlag",
pages = "680--693",
editor = "Yu, {Zhiwen } and Liscano, {Ramiro } and Chen, {Guanling } and Zhang, {Daqing } and Zhou, {Xingshe }",
booktitle = "Ubiquitous Intelligence and Computing",
address = "Germany",
}